1934172240 has 640 divisors, whose sum is σ = 8231473152. Its totient is φ = 362741760.

The previous prime is 1934172239. The next prime is 1934172277. The reversal of 1934172240 is 422714391.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19939872 + ... + 19939968.

Almost surely, 2^1934172240 is an apocalyptic number.

1934172240 is a gapful number since it is divisible by the number (10) 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 1934172240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4115736576).

1934172240 is an abundant number, since it is smaller than the sum of its proper divisors (6297300912).

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

1934172240 is a wasteful number, since it uses less digits than its factorization.

1934172240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1934172240 is about 43979.2250954925. The cubic root of 1934172240 is about 1245.9435952368.

The spelling of 1934172240 in words is "one billion, nine hundred thirty-four million, one hundred seventy-two thousand, two hundred forty".