126979444 has 6 divisors (see below), whose sum is σ = 222214034. Its totient is φ = 63489720.

The previous prime is 126979427. The next prime is 126979469. The reversal of 126979444 is 444979621.

It can be written as a sum of positive squares in only one way, i.e., 126787600 + 191844 = 11260^2 + 438^2 .

It is a super-2 number, since 2×126979444² = 32247558397098272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126979394 and 126979403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15872427 + ... + 15872434.

Almost surely, 2^126979444 is an apocalyptic number.

It is an amenable number.

126979444 is a deficient number, since it is larger than the sum of its proper divisors (95234590).

126979444 is a wasteful number, since it uses less digits than its factorization.

126979444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31744865 (or 31744863 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 126979444 is about 11268.5156076566. The cubic root of 126979444 is about 502.6254485767.

The spelling of 126979444 in words is "one hundred twenty-six million, nine hundred seventy-nine thousand, four hundred forty-four".