1345405352 has 32 divisors (see below), whose sum is σ = 2746980000. Its totient is φ = 615319488.

The previous prime is 1345405291. The next prime is 1345405387. The reversal of 1345405352 is 2535045431.

It is a happy number.

It is a super-2 number, since 2×1345405352² = 3620231122380487808, which contains 22 as substring.

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, 148202 + ... + 157017.

It is an arithmetic number, because the mean of its divisors is an integer number (85843125).

Almost surely, 2^1345405352 is an apocalyptic number.

It is an amenable number.

1345405352 is an abundant number, since it is smaller than the sum of its proper divisors (1401574648).

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

1345405352 is a wasteful number, since it uses less digits than its factorization.

1345405352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305273 (or 305269 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 1345405352 is about 36679.7676110414. The cubic root of 1345405352 is about 1103.9541853318.

The spelling of 1345405352 in words is "one billion, three hundred forty-five million, four hundred five thousand, three hundred fifty-two".