58491900 has 108 divisors (see below), whose sum is σ = 194175072. Its totient is φ = 14676480.

The previous prime is 58491877. The next prime is 58491929. The reversal of 58491900 is 919485.

It is a super-2 number, since 2×58491900² = 6842604731220000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13389 + ... + 17211.

Almost surely, 2^58491900 is an apocalyptic number.

58491900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58491900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97087536).

58491900 is an abundant number, since it is smaller than the sum of its proper divisors (135683172).

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

58491900 is a wasteful number, since it uses less digits than its factorization.

58491900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860 (or 3850 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 58491900 is about 7647.9997384937. Note that the first 3 decimals coincide. The cubic root of 58491900 is about 388.1788862303.

The spelling of 58491900 in words is "fifty-eight million, four hundred ninety-one thousand, nine hundred".