1457105520 has 80 divisors (see below), whose sum is σ = 4864501152. Its totient is φ = 358671360.

The previous prime is 1457105501. The next prime is 1457105543. The reversal of 1457105520 is 255017541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 230391 + ... + 236630.

Almost surely, 2^1457105520 is an apocalyptic number.

1457105520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1457105520 is an abundant number, since it is smaller than the sum of its proper divisors (3407395632).

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

1457105520 is a wasteful number, since it uses less digits than its factorization.

1457105520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467050 (or 467044 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 1457105520 is about 38172.0515560796. The cubic root of 1457105520 is about 1133.6970097768.

The spelling of 1457105520 in words is "one billion, four hundred fifty-seven million, one hundred five thousand, five hundred twenty".