126420490 has 96 divisors (see below), whose sum is σ = 286951680. Its totient is φ = 39844224.

The previous prime is 126420479. The next prime is 126420493. The reversal of 126420490 is 94024621.

It is not an unprimeable number, because it can be changed into a prime (126420493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 344287 + ... + 344653.

It is an arithmetic number, because the mean of its divisors is an integer number (2989080).

Almost surely, 2^126420490 is an apocalyptic number.

126420490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126420490 is an abundant number, since it is smaller than the sum of its proper divisors (160531190).

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

126420490 is a wasteful number, since it uses less digits than its factorization.

126420490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 126420490 is about 11243.6866729734. The cubic root of 126420490 is about 501.8868572492.

The spelling of 126420490 in words is "one hundred twenty-six million, four hundred twenty thousand, four hundred ninety".