1453039920 has 60 divisors (see below), whose sum is σ = 4879794816. Its totient is φ = 387477120.

The previous prime is 1453039901. The next prime is 1453039933. The reversal of 1453039920 is 299303541.

It is a happy number.

1453039920 is a `hidden beast` number, since 1 + 4 + 530 + 39 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×1453039920² = 4222650018227212800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008336 + ... + 1009775.

Almost surely, 2^1453039920 is an apocalyptic number.

1453039920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453039920 is an abundant number, since it is smaller than the sum of its proper divisors (3426754896).

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

1453039920 is a wasteful number, since it uses less digits than its factorization.

1453039920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018130 (or 2018121 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1453039920 is about 38118.7607353649. The cubic root of 1453039920 is about 1132.6416178909.

The spelling of 1453039920 in words is "one billion, four hundred fifty-three million, thirty-nine thousand, nine hundred twenty".