37821348 has 18 divisors (see below), whose sum is σ = 95604054. Its totient is φ = 12607104.

The previous prime is 37821347. The next prime is 37821349. The reversal of 37821348 is 84312873.

It is an interprime number because it is at equal distance from previous prime (37821347) and next prime (37821349).

It can be written as a sum of positive squares in only one way, i.e., 33732864 + 4088484 = 5808^2 + 2022^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1050593 = 37821348 / (3 + 7 + 8 + 2 + 1 + 3 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37821341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525261 + ... + 525332.

Almost surely, 2^37821348 is an apocalyptic number.

It is an amenable number.

37821348 is an abundant number, since it is smaller than the sum of its proper divisors (57782706).

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

37821348 is a wasteful number, since it uses less digits than its factorization.

37821348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050603 (or 1050598 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 37821348 is about 6149.9063407502. The cubic root of 37821348 is about 335.6698500242.

The spelling of 37821348 in words is "thirty-seven million, eight hundred twenty-one thousand, three hundred forty-eight".