16407798 has 32 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 4836960.

The previous prime is 16407779. The next prime is 16407799. The reversal of 16407798 is 89770461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16407799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918 + ... + 5801.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^16407798 is an apocalyptic number.

16407798 is an abundant number, since it is smaller than the sum of its proper divisors (20364042).

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

16407798 is a wasteful number, since it uses less digits than its factorization.

16407798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 16407798 is about 4050.6540212662. The cubic root of 16407798 is about 254.1070807317.

It can be divided in two parts, 16407 and 798, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 16407798 in words is "sixteen million, four hundred seven thousand, seven hundred ninety-eight".