126404940 has 24 divisors (see below), whose sum is σ = 353934000. Its totient is φ = 33707968.

The previous prime is 126404923. The next prime is 126404959. The reversal of 126404940 is 49404621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 126404898 and 126404907.

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, 1053315 + ... + 1053434.

It is an arithmetic number, because the mean of its divisors is an integer number (14747250).

Almost surely, 2^126404940 is an apocalyptic number.

126404940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126404940 is an abundant number, since it is smaller than the sum of its proper divisors (227529060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126404940 is a wasteful number, since it uses less digits than its factorization.

126404940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106761 (or 2106759 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 126404940 is about 11242.9951525383. The cubic root of 126404940 is about 501.8662786742.

The spelling of 126404940 in words is "one hundred twenty-six million, four hundred four thousand, nine hundred forty".