90263402 has 8 divisors (see below), whose sum is σ = 135472800. Its totient is φ = 45105804.

The previous prime is 90263401. The next prime is 90263419. The reversal of 90263402 is 20436209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×90263402² = 16294963481227208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90263401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8252 + ... + 15767.

It is an arithmetic number, because the mean of its divisors is an integer number (16934100).

Almost surely, 2^90263402 is an apocalyptic number.

90263402 is a deficient number, since it is larger than the sum of its proper divisors (45209398).

90263402 is a wasteful number, since it uses less digits than its factorization.

90263402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25900.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 90263402 is about 9500.7053422364. The cubic root of 90263402 is about 448.5772380915.

The spelling of 90263402 in words is "ninety million, two hundred sixty-three thousand, four hundred two".