438145970 has 16 divisors (see below), whose sum is σ = 799771968. Its totient is φ = 172789680.

The previous prime is 438145957. The next prime is 438145999. The reversal of 438145970 is 79541834.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307844 + ... + 309263.

It is an arithmetic number, because the mean of its divisors is an integer number (49985748).

Almost surely, 2^438145970 is an apocalyptic number.

438145970 is a deficient number, since it is larger than the sum of its proper divisors (361625998).

438145970 is a wasteful number, since it uses less digits than its factorization.

438145970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617185.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 438145970 is about 20931.9366041463. The cubic root of 438145970 is about 759.5206869232.

The spelling of 438145970 in words is "four hundred thirty-eight million, one hundred forty-five thousand, nine hundred seventy".