58403640 has 32 divisors (see below), whose sum is σ = 175211280. Its totient is φ = 15574272.

The previous prime is 58403633. The next prime is 58403641. The reversal of 58403640 is 4630485.

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

It is a junction number, because it is equal to n+sod(n) for n = 58403598 and 58403607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58403641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243229 + ... + 243468.

Almost surely, 2^58403640 is an apocalyptic number.

It is an amenable number.

58403640 is an abundant number, since it is smaller than the sum of its proper divisors (116807640).

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

58403640 is a wasteful number, since it uses less digits than its factorization.

58403640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486711 (or 486707 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 58403640 is about 7642.2274239910. The cubic root of 58403640 is about 387.9835434264.

The spelling of 58403640 in words is "fifty-eight million, four hundred three thousand, six hundred forty".