58403280 has 80 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 14375424.

The previous prime is 58403231. The next prime is 58403341. The reversal of 58403280 is 8230485.

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

It is a super-2 number, since 2×58403280² = 6821886229516800, which contains 22 as substring.

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, 6240 + ... + 12479.

It is an arithmetic number, because the mean of its divisors is an integer number (2437344).

Almost surely, 2^58403280 is an apocalyptic number.

58403280 is the 6240-th pentagonal number.

It is an amenable number.

58403280 is an abundant number, since it is smaller than the sum of its proper divisors (136584240).

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

58403280 is a wasteful number, since it uses less digits than its factorization.

58403280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18748 (or 18742 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 58403280 is about 7642.2038706122. The cubic root of 58403280 is about 387.9827462480.

The spelling of 58403280 in words is "fifty-eight million, four hundred three thousand, two hundred eighty".