1914243552 has 144 divisors (see below), whose sum is σ = 6051846528. Its totient is φ = 569963520.

The previous prime is 1914243509. The next prime is 1914243577. The reversal of 1914243552 is 2553424191.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107818 + ... + 124310.

It is an arithmetic number, because the mean of its divisors is an integer number (42026712).

Almost surely, 2^1914243552 is an apocalyptic number.

1914243552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1914243552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3025923264).

1914243552 is an abundant number, since it is smaller than the sum of its proper divisors (4137602976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1914243552 is a wasteful number, since it uses less digits than its factorization.

1914243552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16553 (or 16542 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1914243552 is about 43752.0691167858. The cubic root of 1914243552 is about 1241.6496323975.

The spelling of 1914243552 in words is "one billion, nine hundred fourteen million, two hundred forty-three thousand, five hundred fifty-two".