307629401 has 4 divisors (see below), whose sum is σ = 307665204. Its totient is φ = 307593600.

The previous prime is 307629383. The next prime is 307629403. The reversal of 307629401 is 104926703.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 87403801 + 220225600 = 9349^2 + 14840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-307629401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307629403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3581 + ... + 25061.

It is an arithmetic number, because the mean of its divisors is an integer number (76916301).

It is a Poulet number, since it divides 2^307629400-1.

Almost surely, 2^307629401 is an apocalyptic number.

307629401 is the 14321-st pentagonal number.

It is an amenable number.

307629401 is a deficient number, since it is larger than the sum of its proper divisors (35803).

307629401 is a wasteful number, since it uses less digits than its factorization.

307629401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35802.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 307629401 is about 17539.3671778659. The cubic root of 307629401 is about 675.0603702749.

The spelling of 307629401 in words is "three hundred seven million, six hundred twenty-nine thousand, four hundred one".