126864490 has 32 divisors (see below), whose sum is σ = 235843200. Its totient is φ = 49097664.

The previous prime is 126864467. The next prime is 126864499. The reversal of 126864490 is 94468621.

It is a super-4 number, since 4×126864490⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (126864499) 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, 72769 + ... + 74491.

It is an arithmetic number, because the mean of its divisors is an integer number (7370100).

Almost surely, 2^126864490 is an apocalyptic number.

126864490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126864490 is a deficient number, since it is larger than the sum of its proper divisors (108978710).

126864490 is a wasteful number, since it uses less digits than its factorization.

126864490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 126864490 is about 11263.4137809103. The cubic root of 126864490 is about 502.4737278246.

The spelling of 126864490 in words is "one hundred twenty-six million, eight hundred sixty-four thousand, four hundred ninety".