64306090 has 32 divisors (see below), whose sum is σ = 120070656. Its totient is φ = 24770880.

The previous prime is 64306063. The next prime is 64306097. The reversal of 64306090 is 9060346.

It is a super-2 number, since 2×64306090² = 8270546422176200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64306097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87364 + ... + 88096.

It is an arithmetic number, because the mean of its divisors is an integer number (3752208).

Almost surely, 2^64306090 is an apocalyptic number.

64306090 is a deficient number, since it is larger than the sum of its proper divisors (55764566).

64306090 is a wasteful number, since it uses less digits than its factorization.

64306090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 64306090 is about 8019.1078057350. The cubic root of 64306090 is about 400.6366735792.

The spelling of 64306090 in words is "sixty-four million, three hundred six thousand, ninety".