406196742 has 32 divisors (see below), whose sum is σ = 983066112. Its totient is φ = 109229184.

The previous prime is 406196737. The next prime is 406196753. The reversal of 406196742 is 247691604.

It is a happy number.

It is a super-2 number, since 2×406196742² = 329991586422829128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406196742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283738 + ... + 285165.

It is an arithmetic number, because the mean of its divisors is an integer number (30720816).

Almost surely, 2^406196742 is an apocalyptic number.

406196742 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

406196742 is an abundant number, since it is smaller than the sum of its proper divisors (576869370).

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

406196742 is a wasteful number, since it uses less digits than its factorization.

406196742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568932.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 406196742 is about 20154.3231590644. The cubic root of 406196742 is about 740.5916512535.

The spelling of 406196742 in words is "four hundred six million, one hundred ninety-six thousand, seven hundred forty-two".