35642421 has 36 divisors (see below), whose sum is σ = 56660292. Its totient is φ = 21514752.

The previous prime is 35642419. The next prime is 35642501. The reversal of 35642421 is 12424653.

It can be written as a sum of positive squares in 6 ways, for example, as 1521 + 35640900 = 39^2 + 5970^2 .

It is not a de Polignac number, because 35642421 - 2¹ = 35642419 is a prime.

It is a super-3 number, since 3×35642421³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35642221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128535 + ... + 128811.

It is an arithmetic number, because the mean of its divisors is an integer number (1573897).

Almost surely, 2^35642421 is an apocalyptic number.

It is an amenable number.

35642421 is a deficient number, since it is larger than the sum of its proper divisors (21017871).

35642421 is a wasteful number, since it uses less digits than its factorization.

35642421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 326 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 35642421 is about 5970.1273855756. The cubic root of 35642421 is about 329.0958445579.

It can be divided in two parts, 35642 and 421, that added together give a palindrome (36063).

The spelling of 35642421 in words is "thirty-five million, six hundred forty-two thousand, four hundred twenty-one".