7361820 has 48 divisors (see below), whose sum is σ = 22905120. Its totient is φ = 1963008.

The previous prime is 7361819. The next prime is 7361821. The reversal of 7361820 is 281637.

It is an interprime number because it is at equal distance from previous prime (7361819) and next prime (7361821).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7361821) 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, 6277 + ... + 7356.

It is an arithmetic number, because the mean of its divisors is an integer number (477190).

Almost surely, 2^7361820 is an apocalyptic number.

It is an amenable number.

7361820 is an abundant number, since it is smaller than the sum of its proper divisors (15543300).

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

7361820 is a wasteful number, since it uses less digits than its factorization.

7361820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651 (or 13643 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 7361820 is about 2713.2674029664. The cubic root of 7361820 is about 194.5337975425.

It can be divided in two parts, 736 and 1820, that added together give a triangular number (2556 = T₇₁).

The spelling of 7361820 in words is "seven million, three hundred sixty-one thousand, eight hundred twenty".