416390749 has 4 divisors (see below), whose sum is σ = 417938940. Its totient is φ = 414842560.

The previous prime is 416390731. The next prime is 416390771. The reversal of 416390749 is 947093614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947093614 = 2 ⋅473546807.

It can be written as a sum of positive squares in 2 ways, for example, as 78198649 + 338192100 = 8843^2 + 18390^2 .

It is a cyclic number.

It is not a de Polignac number, because 416390749 - 2⁷ = 416390621 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 (416390449) 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, 773692 + ... + 774229.

It is an arithmetic number, because the mean of its divisors is an integer number (104484735).

Almost surely, 2^416390749 is an apocalyptic number.

It is an amenable number.

416390749 is a deficient number, since it is larger than the sum of its proper divisors (1548191).

416390749 is a wasteful number, since it uses less digits than its factorization.

416390749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548190.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 416390749 is about 20405.6548289929. The cubic root of 416390749 is about 746.7358881890.

The spelling of 416390749 in words is "four hundred sixteen million, three hundred ninety thousand, seven hundred forty-nine".