1224395406 has 64 divisors (see below), whose sum is σ = 3024752640. Its totient is φ = 364577760.

The previous prime is 1224395357. The next prime is 1224395413. The reversal of 1224395406 is 6045934221.

It is a happy number.

1224395406 is a `hidden beast` number, since 1 + 2 + 243 + 9 + 5 + 406 = 666.

It is a super-2 number, since 2×1224395406² = 2998288220467809672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6370 + ... + 49893.

It is an arithmetic number, because the mean of its divisors is an integer number (47261760).

Almost surely, 2^1224395406 is an apocalyptic number.

1224395406 is an abundant number, since it is smaller than the sum of its proper divisors (1800357234).

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

1224395406 is a wasteful number, since it uses less digits than its factorization.

1224395406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56318 (or 56312 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1224395406 is about 34991.3618768976. The cubic root of 1224395406 is about 1069.8114222069.

The spelling of 1224395406 in words is "one billion, two hundred twenty-four million, three hundred ninety-five thousand, four hundred six".