402077 has 8 divisors (see below), whose sum is σ = 437976. Its totient is φ = 366912.

The previous prime is 402071. The next prime is 402089. The reversal of 402077 is 770204.

It can be written as a sum of positive squares in 4 ways, for example, as 64516 + 337561 = 254^2 + 581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402077 - 2¹⁰ = 401053 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 (402071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (54747).

2⁴⁰²⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

402077 is a deficient number, since it is larger than the sum of its proper divisors (35899).

402077 is a wasteful number, since it uses less digits than its factorization.

402077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 402077 is about 634.0954186871. The cubic root of 402077 is about 73.8079387665.

The spelling of 402077 in words is "four hundred two thousand, seventy-seven", and thus it is an iban number.