90754020 has 240 divisors, whose sum is σ = 333704448. Its totient is φ = 20217600.

The previous prime is 90754009. The next prime is 90754063. The reversal of 90754020 is 2045709.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 600945 + ... + 601095.

Almost surely, 2^90754020 is an apocalyptic number.

90754020 is a gapful number since it is divisible by the number (90) 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 90754020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166852224).

90754020 is an abundant number, since it is smaller than the sum of its proper divisors (242950428).

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

90754020 is a wasteful number, since it uses less digits than its factorization.

90754020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 90754020 is about 9526.4904345724. The cubic root of 90754020 is about 449.3885027567.

Adding to 90754020 its reverse (2045709), we get a palindrome (92799729).

The spelling of 90754020 in words is "ninety million, seven hundred fifty-four thousand, twenty".