407802949 has 4 divisors (see below), whose sum is σ = 425533536. Its totient is φ = 390072364.

The previous prime is 407802943. The next prime is 407802961. The reversal of 407802949 is 949208704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 407802949 - 2⁵ = 407802917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407802943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8865259 + ... + 8865304.

It is an arithmetic number, because the mean of its divisors is an integer number (106383384).

Almost surely, 2^407802949 is an apocalyptic number.

It is an amenable number.

407802949 is a deficient number, since it is larger than the sum of its proper divisors (17730587).

407802949 is a wasteful number, since it uses less digits than its factorization.

407802949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17730586.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 407802949 is about 20194.1315485465. The cubic root of 407802949 is about 741.5665310642.

The spelling of 407802949 in words is "four hundred seven million, eight hundred two thousand, nine hundred forty-nine".