64430254 has 48 divisors (see below), whose sum is σ = 119940480. Its totient is φ = 25356240.

The previous prime is 64430251. The next prime is 64430263. The reversal of 64430254 is 45203446.

64430254 = T₃₅₇ + T₃₅₈ + ... + T₇₅₅.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430251) 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, 491769 + ... + 491899.

It is an arithmetic number, because the mean of its divisors is an integer number (2498760).

Almost surely, 2^64430254 is an apocalyptic number.

64430254 is a deficient number, since it is larger than the sum of its proper divisors (55510226).

64430254 is a wasteful number, since it uses less digits than its factorization.

64430254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 64430254 is about 8026.8458313337. The cubic root of 64430254 is about 400.8943613043.

The spelling of 64430254 in words is "sixty-four million, four hundred thirty thousand, two hundred fifty-four".