90406026 has 48 divisors (see below), whose sum is σ = 200877768. Its totient is φ = 29376000.

The previous prime is 90406003. The next prime is 90406027. The reversal of 90406026 is 62060409.

It can be written as a sum of positive squares in 4 ways, for example, as 72335025 + 18071001 = 8505^2 + 4251^2 .

It is a super-2 number, since 2×90406026² = 16346499074225352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90406027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150126 + ... + 150726.

Almost surely, 2^90406026 is an apocalyptic number.

90406026 is an abundant number, since it is smaller than the sum of its proper divisors (110471742).

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

90406026 is a wasteful number, since it uses less digits than its factorization.

90406026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 90406026 is about 9508.2083485797. The cubic root of 90406026 is about 448.8133774025.

The spelling of 90406026 in words is "ninety million, four hundred six thousand, twenty-six".