64546426 has 32 divisors (see below), whose sum is σ = 116006400. Its totient is φ = 26904528.

The previous prime is 64546387. The next prime is 64546453. The reversal of 64546426 is 62464546.

It is a super-2 number, since 2×64546426² = 8332482218746952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24111 + ... + 26653.

It is an arithmetic number, because the mean of its divisors is an integer number (3625200).

Almost surely, 2^64546426 is an apocalyptic number.

64546426 is a deficient number, since it is larger than the sum of its proper divisors (51459974).

64546426 is a wasteful number, since it uses less digits than its factorization.

64546426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2589 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 64546426 is about 8034.0790386951. The cubic root of 64546426 is about 401.1351629652.

It can be divided in two parts, 6454 and 6426, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 64546426 in words is "sixty-four million, five hundred forty-six thousand, four hundred twenty-six".