40723390 has 16 divisors (see below), whose sum is σ = 73458000. Its totient is φ = 16254720.

The previous prime is 40723321. The next prime is 40723433. The reversal of 40723390 is 9332704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 9070.

It is an arithmetic number, because the mean of its divisors is an integer number (4591125).

Almost surely, 2^40723390 is an apocalyptic number.

40723390 is a deficient number, since it is larger than the sum of its proper divisors (32734610).

40723390 is a wasteful number, since it uses less digits than its factorization.

40723390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 40723390 is about 6381.4880709753. The cubic root of 40723390 is about 344.0445171791.

The spelling of 40723390 in words is "forty million, seven hundred twenty-three thousand, three hundred ninety".