276401390 has 16 divisors (see below), whose sum is σ = 501927408. Its totient is φ = 109581696.

The previous prime is 276401381. The next prime is 276401399. The reversal of 276401390 is 93104672.

It is an interprime number because it is at equal distance from previous prime (276401381) and next prime (276401399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276401399) 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, 121172 + ... + 123431.

It is an arithmetic number, because the mean of its divisors is an integer number (31370463).

Almost surely, 2^276401390 is an apocalyptic number.

276401390 is a deficient number, since it is larger than the sum of its proper divisors (225526018).

276401390 is a wasteful number, since it uses less digits than its factorization.

276401390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244723.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 276401390 is about 16625.3237562461. The cubic root of 276401390 is about 651.3984801254.

The spelling of 276401390 in words is "two hundred seventy-six million, four hundred one thousand, three hundred ninety".