40151293 has 32 divisors (see below), whose sum is σ = 52355072. Its totient is φ = 29937600.

The previous prime is 40151239. The next prime is 40151299. The reversal of 40151293 is 39215104.

It is not a de Polignac number, because 40151293 - 2¹⁷ = 40020221 is a prime.

It is a super-2 number, since 2×40151293² = 3224252659143698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40151299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121138 + ... + 121468.

It is an arithmetic number, because the mean of its divisors is an integer number (1636096).

Almost surely, 2^40151293 is an apocalyptic number.

40151293 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40151293 is a deficient number, since it is larger than the sum of its proper divisors (12203779).

40151293 is a wasteful number, since it uses less digits than its factorization.

40151293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 40151293 is about 6336.5047936540. The cubic root of 40151293 is about 342.4258258399.

Adding to 40151293 its reverse (39215104), we get a palindrome (79366397).

The spelling of 40151293 in words is "forty million, one hundred fifty-one thousand, two hundred ninety-three".