1909462452 has 48 divisors (see below), whose sum is σ = 4492837440. Its totient is φ = 631162368.

The previous prime is 1909462439. The next prime is 1909462487. The reversal of 1909462452 is 2542649091.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929058 + ... + 931110.

It is an arithmetic number, because the mean of its divisors is an integer number (93600780).

Almost surely, 2^1909462452 is an apocalyptic number.

1909462452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1909462452 is an abundant number, since it is smaller than the sum of its proper divisors (2583374988).

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

1909462452 is a wasteful number, since it uses less digits than its factorization.

1909462452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1909462452 is about 43697.3963984126. The cubic root of 1909462452 is about 1240.6150374174.

The spelling of 1909462452 in words is "one billion, nine hundred nine million, four hundred sixty-two thousand, four hundred fifty-two".